The invention discloses a method and device for sharing and controlling a plurality of devices in a home network. The method comprises the following steps: obtaining an audio/ video signal from a television set top box, processing the audio/ video signal and transmitting the processed audio/ video signal to a first audio/ video playing terminal; and/or transmitting the processed audio/ video signal obtained from the television set top box to a second audio/ video playing terminal through an over-the-top OTT set top box. The method can also comprise obtaining the audio/ video signal from the OTT set top box, processing the audio/ video signal and transmitting the processed audio/ video signal to the first audio/ video playing terminal. The method also comprises obtaining an audio/ video play control signal from the OTT set top box, processing the signal and transmitting the signal to the television set top box, and receiving the audio/ video signal fed back by the television set top box, processing the signal and transmitting the signal to the first audio/ video playing terminal. Or, the method comprises receiving the audio/ video signal obtained from the television set top box and comprising first play control information; and the OTT set top box generating the audio/ video signal comprising second play control information and feeding back the audio/ video signal. According to the method and device, interconnection of the household entertainment devices can be realized, and user experience is improved.